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package dataanalysis;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Calendar;

/**
 *
 * @author Administrator
 */
public final class MyUtils {

    public static String getDateString() {
        int m, d;
        Calendar cal = Calendar.getInstance();
        m = cal.get(Calendar.MONTH) + 1;      //月份0-11
        d = cal.get(Calendar.DATE);        //日期1-31
        return m + "_" + d;
    }

    /**
     *     新建目录
     *     @param     folderPath     String     如     c:/fqf
     *     @return     boolean
     */
    public static void newFolder(String folderPath) {
        String filePath = folderPath;
        filePath = filePath.toString();
        java.io.File myFilePath = new java.io.File(filePath);
        if (!myFilePath.exists()) {
            myFilePath.mkdir();
        }
    }

    /**
     *     新建文件
     *     @param     filePathAndName     String     文件路径及名称     如c:/fqf.txt
     *     @param     fileContent     String     文件内容
     *     @return     boolean
     */
    public static void newFile(String filePathAndName, String fileContent) throws IOException {

        String filePath = filePathAndName;
        filePath = filePath.toString();
        File myFilePath = new File(filePath);
        if (!myFilePath.exists()) {
            myFilePath.createNewFile();
        }
        FileWriter resultFile = new FileWriter(myFilePath);
        PrintWriter myFile = new PrintWriter(resultFile);
        String strContent = fileContent;
        myFile.println(strContent);
        resultFile.close();

    }

    /**
     *     删除文件
     *     @param     filePathAndName     String     文件路径及名称     如c:/fqf.txt
     *     @param     fileContent     String
     *     @return     boolean
     */
    public static void delFile(String filePathAndName) {
        String filePath = filePathAndName;
        filePath = filePath.toString();
        java.io.File myDelFile = new java.io.File(filePath);
        myDelFile.delete();

    }

    /**
     *     删除文件夹
     *     @param     filePathAndName     String     文件夹路径及名称     如c:/fqf
     *     @param     fileContent     String
     *     @return     boolean
     */
    public static void delFolder(String folderPath) {
        delAllFile(folderPath);     //删除完里面所有内容
        String filePath = folderPath;
        filePath = filePath.toString();
        java.io.File myFilePath = new java.io.File(filePath);
        myFilePath.delete();     //删除空文件夹
    }

    /**
     *     删除文件夹里面的所有文件
     *     @param     path     String     文件夹路径     如     c:/fqf
     */
    public static void delAllFile(String path) {
        File file = new File(path);
        if (!file.exists()) {
            return;
        }
        if (!file.isDirectory()) {
            return;
        }
        String[] tempList = file.list();
        File temp = null;
        for (int i = 0; i < tempList.length; i++) {
            if (path.endsWith(File.separator)) {
                temp = new File(path + tempList[i]);
            } else {
                temp = new File(path + File.separator + tempList[i]);
            }
            if (temp.isFile()) {
                temp.delete();
            }
            if (temp.isDirectory()) {
                delAllFile(path + "/ " + tempList[i]);//先删除文件夹里面的文件
                delFolder(path + "/ " + tempList[i]);//再删除空文件夹
            }
        }
    }

    /**
     *     复制单个文件
     *     @param     oldPath     String     原文件路径     如：c:/fqf.txt
     *     @param     newPath     String     复制后路径     如：f:/fqf.txt
     *     @return     boolean
     */
    public static void copyFile(String oldPath, String newPath) throws FileNotFoundException, IOException {
        int byteread = 0;
        File oldfile = new File(oldPath);
        if (oldfile.exists()) {     //文件存在时
            (new File(newPath).getParentFile()).mkdirs();
            InputStream inStream = new FileInputStream(oldPath);     //读入原文件
            FileOutputStream fs = new FileOutputStream(newPath);
            byte[] buffer = new byte[1444];
            while ((byteread = inStream.read(buffer)) != -1) {
                fs.write(buffer, 0, byteread);
            }
            inStream.close();
        }

    }

    /**
     *     复制整个文件夹内容
     *     @param     oldPath     String     原文件路径     如：c:/fqf
     *     @param     newPath     String     复制后路径     如：f:/fqf/ff
     *     @return     boolean
     */
    public static void copyFolder(String oldPath, String newPath) throws FileNotFoundException, IOException {

        (new File(newPath)).mkdirs();     //如果文件夹不存在     则建立新文件夹
        File a = new File(oldPath);
        String[] file = a.list();
        File temp = null;
        for (int i = 0; i < file.length; i++) {
            if (oldPath.endsWith(File.separator)) {
                temp = new File(oldPath + file[i]);
            } else {
                temp = new File(oldPath + File.separator + file[i]);
            }

            if (temp.isFile()) {
                FileInputStream input = new FileInputStream(temp);
                FileOutputStream output = new FileOutputStream(newPath + "/ "
                        + (temp.getName()).toString());
                byte[] b = new byte[1024 * 5];
                int len;
                while ((len = input.read(b)) != -1) {
                    output.write(b, 0, len);
                }
                output.flush();
                output.close();
                input.close();
            }
            if (temp.isDirectory()) {//如果是子文件夹
                copyFolder(oldPath + "/ " + file[i], newPath + "/ " + file[i]);
            }
        }

    }

    /**
     *     移动文件到指定目录
     *     @param     oldPath     String     如：c:/fqf.txt
     *     @param     newPath     String     如：d:/fqf.txt
     */
    public static void moveFile(String oldPath, String newPath) throws FileNotFoundException, IOException {
        copyFile(oldPath, newPath);
        delFile(oldPath);

    }

    /**
     *     移动文件到指定目录
     *     @param     oldPath     String     如：c:/fqf.txt
     *     @param     newPath     String     如：d:/fqf.txt
     */
    public static void moveFolder(String oldPath, String newPath) throws FileNotFoundException, IOException {
        copyFolder(oldPath, newPath);
        delFolder(oldPath);

    }

    public static void insertToFile(String filePath, String strPos, String strInsert) throws FileNotFoundException, IOException {
        File file = new File(filePath);
        String tempPath = file.getParent() + "\\" + "temp_" + file.getName();
        BufferedReader reader = new BufferedReader(new FileReader(file));
        PrintWriter writer = new PrintWriter(new FileWriter(tempPath));
        String line;
        while ((line = reader.readLine()) != null) {
            writer.println(line);
            if (line.indexOf(strPos) != -1) {
                writer.println(strInsert);
            }
        }
        reader.close();
        writer.close();

        file.delete();
        new File(tempPath).renameTo(file);
    }
}

